<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>layout_left_right</title>
	<link rel="stylesheet" type="text/css" href="leftrightCSS.css">
</head>
<body>
	<div class="main">
		<div class="left">left</div>
		<div class="right">right</div>
	</div>
</body>
</html>